C/X and EPC/X Cables, EIA-232 DB25 Remote Cable Set 

Digi Concentrator Systems using this cable set- AccelePort C/X, AccelePort EPC/X

IBM Concentrator Systems using this cable set-  128-Port Async Adapter

The wiring diagram for the EIA-232 DB25 Cable Set is shown in Tables 1 and 2.  This cable set can also be purchased directly from Digi International with the following part numbers:

Table 1:  HD15 Host to EIA-232 DB25 cable

From HD15 Male	Signal	Direction	Signal	To EIA-232 DB25 Male
1	RxD-		RxD	3
6	TxD-		TxD	2
4	RxC-		RxC	17
2200pF Cap.
5	RxC+
9	TxC-		TxC	15
2200pF Cap.
10	TxC+
			RTS	4
			DSR	6
			DTR	20
12	GND		SG	7
Shell	GND		GND	1

Table 2:  HD15 Concentrator to EIA-232 DB25 cable

From HD15 Female	Signal	Direction	Signal	To EIA-232 DB25 Male
1	TxD-		TxD	2
6	RxD-		RxD	3
4	TxC-		TxC	15
2200pF Cap.
5	TxC+
9	RxC-		RxC	17
2200pF Cap.
10	RxC+
6	RxD-		RxD	3
			4	RTS
			6	DSR
			20	DTR
12	GND		7	SG
Shell	GND		1	GND

* Arrows indicate which direction the signal is flowing

NOTES:

• This cable is designed to connect a C/X or EPC/X host card with it's intended remote concentrator via synchronous equipment which uses the RS232 DB25 cable interface.
• The 2200 pF Cap. references above represent a 2200 pico Farad Capacitor linking the two adjacent signals.
• This cable is not compatible with older metal C/CONs.
• See the C/X and EPC/X Local and Remote Cabling Options page for other options.